期刊名称:International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN:2278-1323
出版年度:2013
卷号:2
期号:2
页码:428-433
出版社:Shri Pannalal Research Institute of Technolgy
摘要:In the multimedia applications messages like audio and video messages are broadcasted through groups. To provide secrecy of those keys which are used in this communication, the methods like key generation and the key distribution among these groups should be done in a secure way. The problems due to this are mutual authentication with the exchange of a session key. In most of the Key Management schemes, different types of group users obtain a new distributed multicast group key which is issued for encrypting and decrypting multimedia data for every session update. Among the various works on key distribution, The RSA method focuses on making the key generation operation speed and also reduces the complexity. The main advantage of this algorithm is that only one message is generated per rekeying operation and only one key is stored in each user's memory. Key distribution is an important issue in multimedia networks. The Key Distribution algorithm and at the same time, increases the number of keys to be stored by GC (Group Center) and group members. A new GCD (Greatest Common Divisor) and LCM based Key Distribution Protocol which focuses on two dimensions is also used to decrease the complexity by increasing the number of multiplication operations and for this the divide and conquer approach for multiplication is used. The second dimension aims at reducing the amount of information stored in the Group Center and group members while performing the update operation in the key content.